Differential Pressure Opening and Closing Mode Switching Method and System Based on the Pile Driving Requirements of Jack-up Platforms

Abstract

This application relates to the technical field of jack-up platforms, and discloses a differential pressure opening and closing mode switching method and system based on the pile driving requirements of a jack-up platform. The method includes receiving a pile pulling instruction to obtain the pile bottom pressure value at the bottom of the leg, and comparing the pile bottom pressure value with a preset pressure threshold group; when the pile bottom pressure value is less than the first pressure value, generating a pile driving start instruction; when the pile bottom pressure value is greater than the second pressure value, generating a pile driving pause instruction; the pressure threshold group includes the first pressure value and the second pressure value, and the first pressure value is less than the second pressure value; the jack-up platform includes a platform body, the platform body is movably connected with a plurality of legs, and is provided with a driving component for driving the legs to lift and lower. The platform body is provided with a pumping and drainage component, and an automatic opening and closing high-efficiency spray valve is arranged at the bottom of the leg. The automatic opening and closing high-efficiency spray valve is communicated with the pumping and drainage component; this application has the effect of improving the pile pulling efficiency of the legs of the jack-up platform.

Description

Technical Field

[0001] The present application relates to the technical field of jack-up platforms, and in particular, to a differential pressure opening and closing mode switching method and system based on the pile driving requirements of a jack-up platform. Background Art

[0002] With the popularization of marine resource exploitation technology, the application of offshore jack-up platforms is becoming more and more extensive. A jack-up platform usually has a number of pile legs that can be lifted and lowered, and the platform body also has the function of pumping / draining water, so as to use the gravity / buoyancy of the platform body to insert the pile legs into the river / seabed and pull out the pile legs from the river / seabed; among them, when the pile legs are inserted into the river / seabed, due to the silt in the river / seabed having a certain effect of isolating water and gas, a vacuum environment is easily formed between the pile legs and the pile leg pits when the pile legs are pulled out, increasing the resistance to pulling out the pile legs; therefore, the above-mentioned related technologies have the problem of difficult pile leg extraction.

[0003] By setting an automatic opening and closing high-efficiency spray valve at the bottom of the pile legs of the jack-up platform as shown in a Chinese utility model patent CN220646981U, it helps to improve the efficiency of pulling out the pile legs of the jack-up platform. Summary of the Invention

[0004] In order to improve the efficiency of pulling out the pile legs of the jack-up platform, the present application provides a differential pressure opening and closing mode switching method and system based on the pile driving requirements of the jack-up platform.

[0005] The first invention object of the present application is achieved by adopting the following technical solutions:

[0006] A differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform, comprising:

[0007] Receiving a pile pulling instruction to obtain the pile bottom pressure value at the bottom of the pile leg, and comparing the pile bottom pressure value with a preset pressure threshold group;

[0008] When the pile bottom pressure value is less than the first pressure value, generating a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to perform spraying work;

[0009] When the pile bottom pressure value is greater than the second pressure value, generating a pile driving pause instruction to control the automatic opening and closing high-efficiency spray valve to pause spraying work;

[0010] The pressure threshold group includes a first pressure value and a second pressure value, and the first pressure value is less than the second pressure value; the jack-up platform includes a platform body, the platform body is movably connected with a number of pile legs, and is provided with a driving component for driving the pile legs to lift and lower, the platform body is provided with a pumping and draining component, the bottom of the pile leg is provided with an automatic opening and closing high-efficiency spray valve, and the automatic opening and closing high-efficiency spray valve is communicated with the pumping and draining component.

[0011] By adopting the above technical solution, the platform body of the jack-up platform is used to carry and install the leg, the driving component, the pumping and drainage component, and the above-water operation equipment, etc. The driving component is used to drive the leg to lift and lower to insert the leg into the river / sea bed or pull the leg out of the river / sea bed. The pumping and drainage component is used to control the self-weight of the platform body, thereby assisting in improving the insertion and extraction efficiency of the leg in the river / sea bed, and at the same time used to supply water to the automatic opening and closing high-efficiency spray valve; when it is necessary to pull the leg out of the river / sea bed, receive the pile pulling instruction, detect the pressure value at the bottom of the leg to obtain the pile bottom pressure value and compare it with the preset pressure threshold group to determine whether pile washing treatment is required; when the pile bottom pressure value is less than the first pressure value, the vacuum degree at the bottom of the leg is relatively large, generate a pile washing start instruction to control the automatic opening and closing high-efficiency spray valve to spray water to wash the sediment at the bottom of the leg, so as to improve the efficiency of pulling the leg out of the river / sea bed; when the pile bottom pressure value is greater than the second pressure value, the vacuum degree at the bottom of the leg is relatively small and the pile washing efficiency is low, pause the water spraying and pile washing work of the automatic opening and closing high-efficiency spray valve to reduce unnecessary energy consumption, thereby intelligently improving the pile pulling efficiency of the jack-up platform leg.

[0012] In a preferred example of the present application: it further includes:

[0013] Receive the pile insertion planning instruction, obtain the meteorological forecast information of the platform operation location, and generate the pile insertion wind vector, the pile insertion ocean current vector, the operation wind vector, and the operation ocean current vector according to the preset pile insertion time period, the next operation cycle time period, and the meteorological forecast information;

[0014] Based on the operation wind vector and the operation ocean current vector, determine the operation comprehensive vector, based on the operation comprehensive vector determine each pre-pile insertion point, based on the pile insertion wind vector and the pile insertion ocean current vector, determine the pile insertion comprehensive vector, and based on the pile insertion comprehensive vector determine the pile insertion order of each pre-pile insertion point;

[0015] Obtain the water depth values of each pre-pile insertion point, calculate the pre-lowering depth of the leg based on the water depth value and the preset pile insertion buffer value, generate a leg pre-lowering instruction and send it to the corresponding driving component;

[0016] Among them, the steps of determining the wind vector include:

[0017] S401: Based on the meteorological forecast information, determine the main wind direction and the main wind speed of all time units within the target time period, and determine the corresponding wind unit vector according to the angle value and the main wind speed of the main wind direction of each time unit;

[0018] S402: Calculate the sum vector of all wind unit vectors within the target time period, and determine the wind vector based on the direction and modulus of the sum vector;

[0019] The steps of determining the ocean current vector include:

[0020] S403: Determine the main flow direction and main flow velocity of all time units within the target time period based on meteorological forecast information, and determine the corresponding ocean current unit vectors according to the angle values and main flow velocities of the main flow directions of each time unit;

[0021] S404: Calculate the sum vector of all ocean current unit vectors within the target time period, and determine the ocean current vector based on the direction and magnitude of the sum vector.

[0022] By adopting the above technical solution, before the pile insertion operation, receive the pile insertion planning instruction to obtain the meteorological forecast information of the platform operation location, and combine the preset time information of the pile insertion time period and the next operation cycle time period to determine the pile insertion wind vector and pile insertion ocean current vector corresponding to the pile insertion time period, as well as the operation wind vector and operation ocean current vector corresponding to the operation cycle time period, which is convenient for subsequent analysis of the sea conditions during pile insertion and on-water operations; according to the sea conditions within the next operation cycle time period, plan the pre-pile insertion points to improve the rationality of the pile insertion positions of the jack-up platform, and according to the sea conditions within the pile insertion time period, plan the pile insertion sequence of each pre-pile insertion point during pile insertion to reduce the influence degree of the jack-up platform by the sea conditions during pile insertion; obtain the water depth values of each pre-pile insertion point, calculate the pre-lowering depth of the leg based on the water depth value and the pile insertion buffer value, and generate a pre-lowering instruction for the leg based on the pre-lowering depth of the leg to improve the pile insertion efficiency during the subsequent pile insertion work.

[0023] In a preferred example of the present application: a plurality of the legs are uniformly arranged around the platform body; the center points of the legs and the center point of the platform form corresponding leg vectors, where the center point of the leg is the geometric center point of the projection of the leg on the sea surface, and the center point of the platform is the geometric center point of the projection of the platform body on the sea surface;

[0024] Determining the operation comprehensive vector based on the operation wind vector and the operation ocean current vector, determining each pre-pile insertion point based on the operation comprehensive vector, determining the pile insertion comprehensive vector based on the pile insertion wind vector and the pile insertion ocean current vector, and determining the pile insertion sequence of each pre-pile insertion point based on the pile insertion comprehensive vector, includes:

[0025] Calculate the operation comprehensive vector. If the number of the legs is odd, align the center point of the platform with the target center point position, and make one leg vector collinear with the operation comprehensive vector to determine each pre-pile insertion point. If the number of the legs is even, align the center point of the platform with the target center point position, and make two leg vectors with opposite directions collinear with the operation comprehensive vector to determine each pre-pile insertion point;

[0026] Calculate the pile insertion comprehensive vector, and determine the pile insertion sequence of the pre-pile insertion points corresponding to each leg based on the order from small to large of the angles between the lines where each leg vector is located and the line where the pile insertion comprehensive vector is located;

[0027] Among them, the calculation formula of the operation comprehensive vector is:

[0028]

[0029] The calculation formula for the pile-insertion comprehensive vector is as follows:

[0030]

[0031] is the operation comprehensive vector, k W is the wind influence coefficient, k C is the ocean current influence coefficient, is the operation wind vector, is the operation ocean current vector, is the pile-insertion comprehensive vector, is the pile-insertion wind vector, is the pile-insertion ocean current vector.

[0032] By adopting the above technical solution, the leg columns of the jack-up platform are arranged around the platform body. Based on the center points of the leg columns and the center point of the platform, a number of leg vectors are determined, which is convenient for subsequent planning of the pre-pile-insertion points of each leg column; the operation comprehensive vector is calculated to know the main direction of the force exerted by the sea conditions on the jack-up platform during the operation on the water. If the number of leg columns is odd, one leg vector is made collinear with the operation comprehensive vector. If the number of leg columns is even, two leg vectors in opposite directions are made collinear with the operation comprehensive vector, so that each leg column can be symmetrically arranged relative to the operation comprehensive vector, improving the stability of the jack-up platform during the operation; the pile-insertion comprehensive vector is calculated to know the main direction of the force exerted by the sea conditions on the jack-up platform during the pile-insertion work, and the pile-insertion order is determined based on the order of the angles between the straight lines where the leg vectors are located and the straight line where the pile-insertion comprehensive vector is located from small to large, so as to improve the stability of the jack-up platform during the pile-insertion work.

[0033] In a preferred example of the present application: before determining the operation comprehensive vector based on the operation wind vector and the operation ocean current vector and determining the pile-insertion comprehensive vector based on the pile-insertion wind vector and the pile-insertion ocean current vector, it further includes:

[0034] Obtain the platform state information of the jack-up platform to determine the centroid height H G , the windward area S W , the draft of the center of buoyancy H -M and the water-facing area S C ;

[0035] Based on the centroid height H G , the windward area S W , the draft of the center of buoyancy H -M , the water-facing area S C , the preset wind influence coefficient calculation formula and the preset ocean current influence coefficient calculation formula, calculate the wind influence coefficient and the ocean current influence coefficient;

[0036] Among them, the calculation formula for the wind force influence coefficient is:

[0037] k W =(k 1 H G +B 1 )S W

[0038] The calculation formula for the ocean current influence coefficient is:

[0039] k C =(k 2 H -M +B 2 )S C

[0040] Among them, k 1 is the first influence coefficient, B 1 is the first influence adjustment value, k 2 is the second influence coefficient, B 2 is the second influence adjustment value;

[0041] The centroid height H G refers to the height of the centroid of the jack-up platform relative to the sea level. The windward area refers to the projected area of the jack-up platform above the sea level perpendicular to the wind vector of the current period. The draft of the buoyancy center H -M refers to the depth of the buoyancy center of the jack-up platform relative to the sea level. The water-facing area refers to the projected area of the jack-up platform below the sea level perpendicular to the ocean current vector of the current period.

[0042] By adopting the above technical solutions, since the degree of influence of the wind force on the jack-up platform on the sea mainly depends on the windward area and the centroid height of the jack-up platform, and the degree of influence of the ocean current mainly depends on the water-facing area and the draft of the buoyancy center of the jack-up platform. Therefore, obtain the platform state information of the jack-up platform to evaluate the centroid and buoyancy center positions of the jack-up platform, as well as the windward area and water-facing area, and then determine the centroid height and draft of the buoyancy center, so as to subsequently evaluate the degree of influence of the wind force and ocean current on the jack-up platform; based on the centroid height, windward area, draft of the buoyancy center, water-facing area, the calculation formula for the wind force influence coefficient and the calculation formula for the ocean current influence coefficient, calculate the wind force influence coefficient and the ocean current influence coefficient, so as to improve the accuracy of the evaluation of the operation comprehensive vector and the pile-insertion comprehensive vector.

[0043] In a preferred example of the present application: Before receiving the pile extraction instruction to obtain the pile bottom pressure value at the bottom of the pile leg, it further includes:

[0044] Obtain the meteorological forecast information of the platform operation location. According to the preset pile extraction period and the meteorological forecast information, generate the pile extraction wind vector and the pile extraction ocean current vector. Based on the pile extraction wind vector and the pile extraction ocean current vector, determine the pile extraction comprehensive vector; when the modulus of the pile extraction comprehensive vector is less than the preset first pile extraction sea condition threshold, determine the pile extraction order corresponding to each pile leg based on the order of the angles between each pile leg vector and the pile insertion comprehensive vector from small to large;

[0045] When the modulus of the pile extraction comprehensive vector is greater than or equal to the first pile extraction sea condition threshold and less than the second pile extraction sea condition threshold, set the pile extraction order of each pile leg to be extracted simultaneously;

[0046] When the modulus of the pile extraction comprehensive vector is greater than or equal to the second pile extraction sea condition threshold, generate a suspension pile extraction instruction;

[0047] Among them, the calculation formula of the pile extraction comprehensive vector is:

[0048]

[0049] is the pile extraction comprehensive vector, is the pile extraction wind vector, is the pile extraction ocean current vector; the first pile extraction sea condition threshold is less than the second pile extraction sea condition threshold.

[0050] By adopting the above technical solutions, obtain the meteorological forecast information of the platform operation location, combine the pile extraction period to generate the pile extraction wind vector and the pile extraction ocean current vector, and further determine the pile extraction comprehensive vector to know the comprehensive sea condition during the pile extraction period; when the modulus of the pile extraction comprehensive vector is less than the preset first pile extraction sea condition threshold, it indicates that the sea condition at the platform operation location is good. Determine the pile extraction order of the pile legs based on the order of the angles between each pile leg vector and the pile insertion comprehensive vector from small to large, so as to first extract the pile legs far from the side of the combined action of the comprehensive sea condition on the jack-up platform, so as to utilize the action of the sea condition on the jack-up platform to improve the extraction efficiency of the later extracted pile legs; when the modulus of the pile extraction comprehensive vector is between the first pile extraction sea condition threshold and the second pile extraction sea condition threshold, it indicates that the sea condition is average. Adopting the method of extracting all pile legs simultaneously helps to reduce the possibility of the jack-up platform tipping over when extracting the pile legs; when the modulus of the pile extraction comprehensive vector is greater than or equal to the second pile extraction sea condition threshold, it indicates that the sea condition is poor, and the extraction of the pile legs should be suspended to prevent the jack-up platform from tipping over and being damaged.

[0051] The second invention object of the present application is achieved by adopting the following technical solutions:

[0052] A differential pressure opening and closing mode switching system based on the pile driving requirements of a jack-up platform, which is applied to the differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform as described in any one of the above, includes:

[0053] The pile bottom pressure value acquisition module is used to receive the pile pulling instruction to obtain the pile bottom pressure value at the bottom of the pile leg, and compare the pile bottom pressure value with a preset pressure threshold group;

[0054] The spray work execution module is used to generate a pile flushing start instruction to control the automatic opening and closing high-efficiency spray valve to execute the spray work when the pile bottom pressure value is less than the first pressure value;

[0055] The spray work pause module is used to generate a pile flushing pause instruction to control the automatic opening and closing high-efficiency spray valve to pause the spray work when the pile bottom pressure value is greater than the second pressure value;

[0056] The pressure threshold group includes a first pressure value and a second pressure value, and the first pressure value is less than the second pressure value; the jack-up platform includes a platform body, the platform body is movably connected with a plurality of pile legs, and is provided with a driving component for driving the pile legs to lift and lower, the platform body is provided with a pumping and drainage component, the bottom of the pile leg is provided with an automatic opening and closing high-efficiency spray valve, and the automatic opening and closing high-efficiency spray valve is communicated with the pumping and drainage component.

[0057] In a preferred example of the present application: it further includes:

[0058] The pile driving sea condition analysis module is used to receive the pile driving planning instruction, obtain the meteorological forecast information of the platform operation location, and generate a pile driving wind vector, a pile driving ocean current vector, an operation wind vector and an operation ocean current vector according to the preset pile driving time period, the next operation cycle time period and the meteorological forecast information;

[0059] The pile driving order determination module is used to determine the operation comprehensive vector based on the operation wind vector and the operation ocean current vector, determine each pre-pile driving point based on the operation comprehensive vector, determine the pile driving comprehensive vector based on the pile driving wind vector and the pile driving ocean current vector, and determine the pile driving order of each pre-pile driving point based on the pile driving comprehensive vector;

[0060] The pile leg pre-lowering instruction generation module is used to obtain the water depth value of each pre-pile driving point, calculate the pre-lowering depth of the pile leg based on the water depth value and the preset pile driving buffer value, so as to generate a pile leg pre-lowering instruction and send it to the corresponding driving component;

[0061] Among them, the steps of determining the wind vector include:

[0062] S401: Determine the main wind direction and main wind speed of all time units within the target time period based on the meteorological forecast information, and determine the corresponding wind unit vector according to the angle value and main wind speed of the main wind direction of each time unit;

[0063] S402: Calculate the sum vector of all wind unit vectors within the target time period, and determine the wind vector based on the direction and modulus of the sum vector;

[0064] The steps of determining the ocean current vector include:

[0065] S403: Determine the main flow direction and main flow velocity of all time units within the target period based on meteorological forecast information, and determine the corresponding ocean current unit vectors according to the angle values and main flow velocities of the main flow directions of each time unit.

[0066] S404: Calculate the sum vector of all ocean current unit vectors within the target period, and determine the ocean current vector based on the direction and modulus of the sum vector.

[0067] In a preferred example of the present application: The pile bottom pressure value acquisition module includes:

[0068] A pile pulling comprehensive vector calculation sub-module, configured to obtain meteorological forecast information of the platform operation location, generate a pile pulling wind vector and a pile pulling ocean current vector according to a preset pile pulling period and meteorological forecast information, and determine a pile pulling comprehensive vector based on the pile pulling wind vector and the pile pulling ocean current vector;

[0069] A safe sea condition pile pulling planning sub-module, configured to, when the modulus of the pile pulling comprehensive vector is less than a preset first pile pulling sea condition threshold, determine the pile pulling order corresponding to each pile leg based on the order of the angles between each pile leg vector and the pile inserting comprehensive vector from small to large;

[0070] An ordinary sea condition pile pulling planning sub-module, configured to, when the modulus of the pile pulling comprehensive vector is greater than or equal to the first pile pulling sea condition threshold and less than the second pile pulling sea condition threshold, set the pile pulling order of each pile leg to be pulled out simultaneously;

[0071] A risk sea condition pile pulling planning sub-module, configured to, when the modulus of the pile pulling comprehensive vector is greater than or equal to the second pile pulling sea condition threshold, generate a pile pulling suspension instruction.

[0072] The third invention object of the present application is achieved by adopting the following technical solution:

[0073] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the above-mentioned differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform are implemented.

[0074] The fourth invention object of the present application is achieved by adopting the following technical solution:

[0075] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform are implemented.

[0076] In summary, the present application includes at least one of the following beneficial technical effects:

[0077] 1. The platform body of the jack-up platform is used to carry and install leg structures, driving components, pumping and drainage components, and offshore operation equipment, etc. The driving components are used to drive the leg structures to lift and insert the leg structures into the river / seabed or pull the leg structures out of the river / seabed. The pumping and drainage components are used to control the self-weight of the platform body, thereby assisting in improving the insertion and extraction efficiency of the leg structures in the river / seabed, and at the same time used to supply water to the automatic on-off high-efficiency spray valve; when it is necessary to pull the leg structures out of the river / seabed, receive the pile-pulling instruction, detect the pressure value at the bottom of the leg structure to obtain the pile bottom pressure value and compare it with the preset pressure threshold group to determine whether pile flushing treatment is required; when the pile bottom pressure value is less than the first pressure value, the vacuum degree at the bottom of the leg structure is relatively large, generate a pile flushing start instruction to control the automatic on-off high-efficiency spray valve to spray water to wash the sediment at the bottom of the leg structure, so as to improve the efficiency of pulling the leg structures out of the river / seabed; when the pile bottom pressure value is greater than the second pressure value, the vacuum degree at the bottom of the leg structure is relatively small, and the pile flushing efficiency is relatively low, suspend the water spraying and pile flushing work of the automatic on-off high-efficiency spray valve to reduce unnecessary energy consumption, thereby intelligently improving the extraction efficiency of the leg structures of the jack-up platform.

[0078] 2. Obtain the meteorological forecast information of the platform operation location, combine it with the pile-pulling period to generate a pile-pulling wind vector and a pile-pulling ocean current vector, and further determine the pile-pulling comprehensive vector to know the comprehensive sea conditions during the pile-pulling period; when the modulus of the pile-pulling comprehensive vector is less than the preset first pile-pulling sea condition threshold, it indicates that the sea conditions at the platform operation location are good. Determine the pile-pulling order of the leg structures based on the ascending order of the angles between each leg structure vector and the pile-inserting comprehensive vector, so as to first pull out the leg structures far from the side of the combined action of the comprehensive sea conditions on the jack-up platform, so as to utilize the action of the sea conditions on the jack-up platform to improve the extraction efficiency of the leg structures pulled out later; when the modulus of the pile-pulling comprehensive vector is between the first pile-pulling sea condition threshold and the second pile-pulling sea condition threshold, it indicates that the sea conditions are average. Adopt the method of pulling out all the leg structures at the same time, which helps to reduce the possibility of the jack-up platform tipping over when pulling out the leg structures; when the modulus of the pile-pulling comprehensive vector is greater than or equal to the second pile-pulling sea condition threshold, it indicates that the sea conditions are poor, and the pile-pulling of the leg structures should be suspended to prevent the jack-up platform from tipping over and being damaged.

[0079] 3. Before conducting the pile insertion operation, receive the pile insertion planning instruction to obtain the meteorological forecast information of the platform operation location. Combine the preset time information of the pile insertion period and the next operation cycle period to determine the pile insertion wind vector and pile insertion ocean current vector corresponding to the pile insertion period, as well as the operation wind vector and operation ocean current vector corresponding to the operation cycle period, so as to facilitate the subsequent analysis of the sea conditions during pile insertion and water operation; according to the sea conditions within the next operation cycle period, plan the pre-pile insertion points to improve the rationality of the pile insertion position of the jack-up platform. According to the sea conditions within the pile insertion period, plan the pile insertion sequence of each pre-pile insertion point during pile insertion to reduce the influence of the sea conditions on the jack-up platform during pile insertion; obtain the water depth values of each pre-pile insertion point, calculate the pre-lowering depth of the leg based on the water depth value and the pile insertion buffer value, and generate a pre-lowering instruction for the leg based on the pre-lowering depth of the leg to improve the pile insertion efficiency during the subsequent execution of the pile insertion work. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 is a flowchart of a differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform in Embodiment 1 of the present application.

[0081] Figure 2 is a schematic block diagram of a differential pressure opening and closing mode switching system based on the pile driving requirements of a jack-up platform in Embodiment 2 of the present application.

[0082] Figure 3 is a schematic diagram of the equipment in Embodiment 3 of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0083] The following further Figures 1 to 3 describes the present application in detail with reference to the

[0084] Embodiment 1

[0085] Refer to Figure 1 , the present application discloses a differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform. Among them, the jack-up platform includes a platform body, and a plurality of legs are movably connected to the platform body. The platform body is provided with a driving component for driving the legs to vertically lift and lower. The platform body is provided with a pumping and drainage component, and the pumping and drainage component is provided with a water storage container. The bottom of the leg is provided with an automatic opening and closing high-efficiency spray valve as shown in Chinese Utility Model Patent CN220646981U, and the automatic opening and closing high-efficiency spray valve is communicated with the pumping and drainage component.

[0086] The platform body of the jack-up platform is used to carry and install the leg, drive component, drainage component and other above-water operation equipment. The drive component is used to drive the leg to lift and insert the leg into the river / sea bed or pull the leg out of the river / sea bed. The drainage component is used to control the deadweight of the platform body, so as to adjust the deadweight of the jack-up platform or the buoyancy in water, to assist in improving the insertion and extraction efficiency of the leg in the river / sea bed, and at the same time to supply water for the automatic opening and closing high-efficiency spray valve.

[0087] The differential pressure opening and closing mode switching method based on the pile driving requirement of the jack-up platform specifically includes the following steps:

[0088] S10: Receive the pile pulling instruction to obtain the pile bottom pressure value at the bottom of the leg, and compare the pile bottom pressure value with the preset pressure threshold group.

[0089] In this embodiment, the pressure threshold group includes a first pressure value and a second pressure value. The first pressure value is less than the second pressure value, and the second pressure value is less than the water pressure value at the elevation of the bottom of the leg.

[0090] Specifically, when it is necessary to pull the leg out of the river / sea bed, receive the pile pulling instruction, detect the pressure value at the bottom of the leg to obtain the pile bottom pressure value and compare it with the preset pressure threshold group, so as to judge whether pile driving treatment is required.

[0091] S20: When the pile bottom pressure value is less than the first pressure value, generate a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to perform the spraying operation.

[0092] Specifically, when the pile bottom pressure value is less than the first pressure value, the vacuum degree at the bottom of the leg is relatively large. Generate a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to spray water to wash the sediment at the bottom of the leg, so as to destroy the vacuum environment formed at the bottom of the leg in the river / sea bed and improve the efficiency of pulling the leg out of the river / sea bed.

[0093] S30: When the pile bottom pressure value is greater than the second pressure value, generate a pile driving pause instruction to control the automatic opening and closing high-efficiency spray valve to pause the spraying operation.

[0094] Specifically, when the pile bottom pressure value is greater than the second pressure value, the vacuum degree at the bottom of the leg is relatively small and the pile driving efficiency is relatively low. Pause the water spraying pile driving operation of the automatic opening and closing high-efficiency spray valve to reduce unnecessary energy consumption, thereby intelligently improving the pile pulling efficiency of the leg of the jack-up platform.

[0095] Among them, the differential pressure opening and closing mode switching method based on the pile driving requirement of the jack-up platform further includes:

[0096] S40: Receive the pile insertion planning instruction, obtain the meteorological forecast information of the platform operation location, and generate the pile insertion wind vector, pile insertion ocean current vector, operation wind vector, and operation ocean current vector according to the preset pile insertion time period, the next operation cycle time period, and the meteorological forecast information.

[0097] In this embodiment, the meteorological forecast information refers to the information obtained from an authoritative meteorological agency, which at least includes the wind direction, wind speed, ocean current direction, and ocean current velocity; the pile insertion time period refers to the planned time period for the jack-up platform to execute the pile insertion work of inserting the pile legs into the river / sea bed; the operation cycle time period refers to several time periods obtained by dividing the water operation time of the jack-up platform. Preferably, each operation cycle time period can be one week, one month, or can also be divided according to the occurrence time of risk meteorological events such as typhoons; the pile insertion wind vector refers to the wind vector within the pile insertion time period, the pile insertion ocean current vector refers to the ocean current vector within the pile insertion time period, the operation wind vector refers to the wind vector within the next operation cycle time period, and the operation ocean current vector refers to the ocean current vector within the next operation cycle time period; all vectors and directions mentioned in this embodiment are in the plane coordinate system on the sea surface.

[0098] The wind direction is determined according to the wind direction judgment interval. The angle value of the wind direction is the middle value of the upper limit angle and the lower limit angle of the corresponding wind direction judgment interval. Preferably, there are 18 wind direction judgment intervals, with the due east direction being 0°. The respective wind direction judgment intervals are (350°, 10°], (10°, 30°], (30°, 50°], (50°, 70°], (70°, 90°], (90°, 110°], (110°, 130°], (130°, 150°], (150°, 170°], (170°, 190°], (190°, 210°], (210°, 230°], (230°, 250°], (250°, 270°], (270°, 290°], (290°, 310°], (310°, 330°], (330°, 350°], and the corresponding angle values of the wind directions are 0°, 20°, 40°, 60°, 80°, 100°, 120°, 140°, 160°, 180°, 200°, 220°, 240°, 260°, 280°, 300°, 320°, 340°; for example, if the actual angle of the current wind direction is 5°, and it is within the wind direction judgment interval of (350°, 10°], then the current wind direction is determined to be 0°.

[0099] Among them, the steps for determining the wind vector include:

[0100] S401: Based on the meteorological forecast information, determine the main wind direction and main wind speed of all time units within the target time period, and determine the corresponding wind unit vectors according to the angle value and main wind speed of the main wind direction of each time unit.

[0101] S402: Calculate the sum vector of all wind unit vectors within the target time period, and determine the wind force vector based on the direction and magnitude of the sum vector.

[0102] In this embodiment, the time unit refers to several time periods obtained by dividing the target time period, each of which is equal to or less than the unit time. One unit time can be 10 minutes, 30 minutes, or 60 minutes, and specifically can be determined with reference to the update time or data granularity of the meteorological forecast information; the main wind direction is the wind direction with the longest duration within the time unit, and the main wind speed refers to the average wind speed in the main wind direction within the time unit.

[0103] The flow direction is determined according to the flow direction judgment interval. The angular value of the flow direction is the intermediate value between the upper limit angle and the lower limit angle of the corresponding flow direction judgment interval. Preferably, there are 18 flow direction judgment intervals, with the due east direction being 0°. The respective flow direction judgment intervals are (350°, 10°], (10°, 30°], (30°, 50°], (50°, 70°], (70°, 90°], (90°, 110°], (110°, 130°], (130°, 150°], (150°, 170°], (170°, 190°], (190°, 210°], (210°, 230°], (230°, 250°], (250°, 270°], (270°, 290°], (290°, 310°], (310°, 330°], (330°, 350°], and the corresponding angular values of the flow direction are 0°, 20°, 40°, 60°, 80°, 100°, 120°, 140°, 160°, 180°, 200°, 220°, 240°, 260°, 280°, 300°, 320°, 340°.

[0104] The steps for determining the ocean current vector include:

[0105] S403: Determine the main flow direction and main flow speed of all time units within the target time period based on the meteorological forecast information, and determine the corresponding ocean current unit vector according to the angular value and main flow speed of the main flow direction of each time unit;

[0106] S404: Calculate the sum vector of all ocean current unit vectors within the target time period, and determine the ocean current vector based on the direction and magnitude of the sum vector.

[0107] In this embodiment, the main flow direction is the flow direction with the longest duration within the time unit, and the main flow speed refers to the average flow speed in the main flow direction within the time unit.

[0108] Specifically, before performing the pile insertion operation, receive the pile insertion planning instruction to obtain the meteorological forecast information of the platform operation location, and combine the preset time information of the pile insertion period and the next operation cycle period to determine the pile insertion wind vector and pile insertion ocean current vector corresponding to the pile insertion period, as well as the operation wind vector and operation ocean current vector corresponding to the operation cycle period, which is convenient for subsequent analysis of the sea conditions during pile insertion and on-water operations.

[0109] S50: Determine the operation comprehensive vector based on the operation wind vector and operation ocean current vector, determine each pre-pile-insertion point based on the operation comprehensive vector, determine the pile insertion comprehensive vector based on the pile insertion wind vector and pile insertion ocean current vector, and determine the pile insertion order of each pre-pile-insertion point based on the pile insertion comprehensive vector.

[0110] In this embodiment, the pile insertion order of the pre-pile-insertion points is related to the pre-lowering depth of the corresponding pile legs. The pre-lowering depth of the pile legs with a prior pile insertion order is 10 cm or 20 cm greater than the pre-lowering depth of the pile legs with a pile insertion order one position later.

[0111] Specifically, according to the sea conditions during the next operation cycle period, plan the pre-pile-insertion points to improve the rationality of the pile insertion positions of the jack-up platform. According to the sea conditions during the pile insertion period, plan the pile insertion order of each pre-pile-insertion point during pile insertion to reduce the influence degree of the jack-up platform by the sea conditions during pile insertion.

[0112] Among them, several pile legs are evenly arranged around the platform body; the center point of the pile leg and the center point of the platform form a corresponding pile leg vector, and the direction of the pile leg vector is from the center point of the platform to the center point of the pile leg, where the center point of the pile leg is the geometric center point of the projection of the pile leg on the sea surface, and the center point of the platform is the geometric center point of the projection of the platform body on the sea surface; each pile leg of the jack-up platform is arranged around the platform body, and several pile leg vectors are determined based on the center point of the pile leg and the center point of the platform, which is convenient for subsequent planning of the pre-pile-insertion points of each pile leg.

[0113] In step S50, it includes:

[0114] S51: Calculate the operation comprehensive vector. If the number of pile legs is odd, align the center point of the platform with the target center point position, and make one pile leg vector collinear with the operation comprehensive vector to determine each pre-pile-insertion point. If the number of pile legs is even, align the center point of the platform with the target center point position, and make two pile leg vectors with opposite directions collinear with the operation comprehensive vector to determine each pre-pile-insertion point.

[0115] In this embodiment, the calculation formula of the operation comprehensive vector is:

[0116]

[0117] is the operation comprehensive vector, k Wis the wind influence coefficient, k C is the ocean current influence coefficient is the operating wind vector is the operating ocean current vector

[0118] Specifically, calculate the operating comprehensive vector to obtain the main direction of the force exerted by the sea conditions on the jack-up platform during offshore operations. If the number of leg structures is odd, align one leg structure vector with the operating comprehensive vector; if the number of leg structures is even, align two leg structure vectors with opposite directions with the operating comprehensive vector, so that each leg structure can be symmetrically arranged relative to the operating comprehensive vector, improving the stability of the jack-up platform during operations

[0119] S52: Calculate the pile driving comprehensive vector, and determine the pile driving sequence of the pre-pile driving points corresponding to each leg structure based on the ascending order of the angles between the lines where the leg structure vectors are located and the line where the pile driving comprehensive vector is located

[0120] In this embodiment, the calculation formula for the pile driving comprehensive vector is

[0121]

[0122] is the pile driving comprehensive vector is the pile driving wind vector is the pile driving ocean current vector

[0123] Specifically, calculate the pile driving comprehensive vector to obtain the main direction of the force exerted by the sea conditions on the jack-up platform during pile driving operations, and determine the pile driving sequence based on the ascending order of the angles between the lines where the leg structure vectors are located and the line where the pile driving comprehensive vector is located, so as to improve the stability of the jack-up platform during pile driving operations

[0124] Among them, before step S50, it further includes

[0125] S53: Obtain the platform state information of the jack-up platform to determine the center of mass height H G of the jack-up platform, the windward area S W the draft of the center of buoyancy H -M and the waterward area S C of the jack-up platform

[0126] In this embodiment, the platform state information includes the state information of the jack-up platform that may change the position of the center of mass and the center of buoyancy of the jack-up platform, at least including the lifting height information of each leg structure relative to the sea level, the water storage capacity and water storage position information of the pumping and drainage components, etc

[0127] The center of mass height H GRefers to the height of the centroid of the jack-up platform relative to the sea level. When the centroid is above the sea level, it takes a positive value. The windward area refers to the projected area of the jack-up platform above the sea level perpendicular to the wind vector of the current period. The draft of the center of buoyancy H -M Refers to the depth of the center of buoyancy of the jack-up platform relative to the sea level. When the center of buoyancy is below the sea level, it takes a positive value. The leeward area refers to the projected area of the jack-up platform below the sea level perpendicular to the ocean current vector of the current period.

[0128] Specifically, since the degree of influence of the wind on the jack-up platform on the sea surface mainly depends on the windward area and the centroid height of the jack-up platform, and the degree of influence of the ocean current mainly depends on the leeward area and the draft of the center of buoyancy of the jack-up platform. Therefore, obtain the platform state information of the jack-up platform to evaluate the position of the centroid and the center of buoyancy of the jack-up platform, as well as the windward area and the leeward area, and then determine the height of the centroid and the draft of the center of buoyancy, so as to evaluate the degree of influence of the wind and the ocean current on the jack-up platform subsequently.

[0129] S54: Based on the centroid height H G , the windward area S W , the draft of the center of buoyancy H -M , the leeward area S C , the preset wind influence coefficient calculation formula and the preset ocean current influence coefficient calculation formula, calculate the wind influence coefficient and the ocean current influence coefficient.

[0130] In this embodiment, the calculation formula of the wind influence coefficient is:

[0131] k W =(k 1 H G +B 1 )S W

[0132] The calculation formula of the ocean current influence coefficient is:

[0133] k C =(k 2 H -M +B 2 )S C

[0134] Where k 1 is the first influence coefficient, B 1 is the first influence adjustment value, k 2 is the second influence coefficient, B 2 is the second influence adjustment value. The values of the first influence coefficient, the first influence adjustment value, the second influence coefficient, and the second influence adjustment value can be set and adjusted according to actual needs.

[0135] Specifically, based on the centroid height, the windward area, the center of buoyancy depth, the water-facing area, the calculation formula of the wind influence coefficient, and the calculation formula of the ocean current influence coefficient, the wind influence coefficient and the ocean current influence coefficient are calculated to improve the accuracy of the evaluation of the operation comprehensive vector and the pile driving comprehensive vector.

[0136] S60: Obtain the water depth values of each pre-pile-driving point, and calculate the pre-lowering depth of the leg based on the water depth value and the preset pile-driving buffer value, so as to generate a pre-lowering instruction for the leg and send it to the corresponding driving component.

[0137] In this embodiment, the number of pre-pile-driving points is the same as the number of legs and they correspond one by one.

[0138] Specifically, obtain the water depth values of each pre-pile-driving point, calculate the pre-lowering depth of the leg based on the water depth value and the pile-driving buffer value, and generate a pre-lowering instruction for the leg based on the pre-lowering depth of the leg, so as to improve the pile-driving efficiency when performing pile driving work subsequently.

[0139] Wherein, before step S10, it further includes:

[0140] S11: Obtain the weather forecast information of the platform operation location, generate a pile-pulling wind vector and a pile-pulling ocean current vector according to the preset pile-pulling time period and the weather forecast information, and determine the pile-pulling comprehensive vector based on the pile-pulling wind vector and the pile-pulling ocean current vector.

[0141] In this embodiment, the calculation formula of the pile-pulling comprehensive vector is:

[0142]

[0143] is the pile-pulling comprehensive vector, is the pile-pulling wind vector, is the pile-pulling ocean current vector; the first pile-pulling sea condition threshold is less than the second pile-pulling sea condition threshold, and both the first pile-pulling sea condition threshold and the second pile-pulling sea condition threshold are thresholds used to compare with the modulus of the pile-pulling comprehensive vector.

[0144] Specifically, obtain the weather forecast information of the platform operation location, combine the pile-pulling time period to generate a pile-pulling wind vector and a pile-pulling ocean current vector, and further determine the pile-pulling comprehensive vector, so as to know the comprehensive sea condition during the pile-pulling time period.

[0145] S12: When the modulus of the pile-pulling comprehensive vector is less than the preset first pile-pulling sea condition threshold, determine the pile-pulling order corresponding to each leg based on the order of the angles between each leg vector and the pile-driving comprehensive vector from small to large.

[0146] Specifically, when the modulus of the comprehensive pile-pulling vector is less than the preset first pile-pulling sea condition threshold, it indicates that the sea condition at the platform operation location is good. The pile-pulling order of the pile legs is determined based on the ascending order of the angles between each pile leg vector and the comprehensive pile-pulling vector, so as to first pull out the pile legs far from the side of the combined action of the comprehensive sea condition on the jack-up platform, so as to utilize the action force of the sea condition on the jack-up platform to improve the pulling efficiency of the pile legs to be pulled out later.

[0147] S13: When the modulus of the comprehensive pile-pulling vector is greater than or equal to the first pile-pulling sea condition threshold and less than the second pile-pulling sea condition threshold, set the pile-pulling order of each pile leg to be pulled out simultaneously.

[0148] Specifically, when the modulus of the comprehensive pile-pulling vector is between the first pile-pulling sea condition threshold and the second pile-pulling sea condition threshold, it indicates that the sea condition is average. Adopting the method of pulling out all pile legs simultaneously helps to reduce the possibility of the jack-up platform tipping over when pulling out the pile legs.

[0149] S14: When the modulus of the comprehensive pile-pulling vector is greater than or equal to the second pile-pulling sea condition threshold, generate a pile-pulling pause instruction.

[0150] Specifically, when the modulus of the comprehensive pile-pulling vector is greater than or equal to the second pile-pulling sea condition threshold, it indicates that the sea condition is poor, and the pile legs should be paused from being pulled out to prevent the jack-up platform from tipping over and being damaged.

[0151] It should be understood that the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0152] Embodiment 2

[0153] A differential pressure opening and closing mode switching system based on the pile driving requirements of a jack-up platform. The differential pressure opening and closing mode switching system based on the pile driving requirements of a jack-up platform corresponds to the differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform in the above embodiments.

[0154] As Figure 2 shown, the differential pressure opening and closing mode switching system based on the pile driving requirements of a jack-up platform includes a pile bottom pressure value acquisition module, a spray work execution module, and a spray work pause module. The detailed descriptions of each functional module are as follows:

[0155] The pile bottom pressure value acquisition module is used to receive a pile-pulling instruction to obtain the pile bottom pressure value at the bottom of the pile leg, and compare the pile bottom pressure value with a preset pressure threshold group;

[0156] The spray work execution module is used to generate a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to execute spray work when the pile bottom pressure value is less than the first pressure value;

[0157] The spray work pause module is used to generate a pile driving pause instruction to control the automatic opening and closing high-efficiency spray valve to pause the spray work when the pile bottom pressure value is greater than the second pressure value.

[0158] Among them, the pile bottom pressure value acquisition module further includes:

[0159] The pile pulling comprehensive vector calculation sub-module is used to obtain the weather forecast information of the platform operation location, generate a pile pulling wind vector and a pile pulling ocean current vector according to the preset pile pulling time period and the weather forecast information, and determine the pile pulling comprehensive vector based on the pile pulling wind vector and the pile pulling ocean current vector;

[0160] The safe sea condition pile pulling planning sub-module is used to determine the pile pulling order corresponding to each pile leg in ascending order of the angle between each pile leg vector and the pile driving comprehensive vector when the modulus of the pile pulling comprehensive vector is less than the preset first pile pulling sea condition threshold;

[0161] The general sea condition pile pulling planning sub-module is used to set the pile pulling order of each pile leg to be pulled out simultaneously when the modulus of the pile pulling comprehensive vector is greater than or equal to the first pile pulling sea condition threshold and less than the second pile pulling sea condition threshold;

[0162] The risk sea condition pile pulling planning sub-module is used to generate a pile pulling pause instruction when the modulus of the pile pulling comprehensive vector is greater than or equal to the second pile pulling sea condition threshold.

[0163] Among them, the differential pressure opening and closing mode switching system based on the jack-up platform pile driving requirement further includes:

[0164] The pile driving sea condition analysis module is used to receive the pile driving planning instruction, obtain the weather forecast information of the platform operation location, and generate a pile driving wind vector, a pile driving ocean current vector, an operation wind vector and an operation ocean current vector according to the preset pile driving time period, the next operation cycle time period and the weather forecast information;

[0165] The pile driving order determination module is used to determine the operation comprehensive vector based on the operation wind vector and the operation ocean current vector, determine each pre-pile driving point based on the operation comprehensive vector, determine the pile driving comprehensive vector based on the pile driving wind vector and the pile driving ocean current vector, and determine the pile driving order of each pre-pile driving point based on the pile driving comprehensive vector;

[0166] The pile leg pre-lowering instruction generation module is used to obtain the water depth value of each pre-pile driving point, calculate the pile leg pre-lowering depth based on the water depth value and the preset pile driving buffer value, so as to generate a pile leg pre-lowering instruction and send it to the corresponding drive component.

[0167] Among them, the pile driving order determination module further includes:

[0168] A pre-inserted pile point determination sub-module is used to calculate the comprehensive operation vector. If the number of jacking legs is odd, align the center point of the platform with the target center point, and make one jacking leg vector collinear with the comprehensive operation vector to determine each pre-inserted pile point. If the number of jacking legs is even, align the center point of the platform with the target center point, and make two jacking leg vectors in opposite directions collinear with the comprehensive operation vector to determine each pre-inserted pile point;

[0169] An inserted pile sequence determination sub-module is used to calculate the comprehensive inserted pile vector, and determine the inserted pile sequence of each pre-inserted pile point corresponding to each jacking leg based on the order of the angles between the lines where each jacking leg vector is located and the line where the comprehensive inserted pile vector is located from small to large.

[0170] Among them, the inserted pile sequence determination module further includes:

[0171] A platform state analysis sub-module is used to obtain the platform state information of the jack-up platform to determine the centroid height H of the jack-up platform G and the windward area S W and the draft of the center of buoyancy H -M and the waterward area S C ;

[0172] An influence coefficient evaluation sub-module is used to calculate the wind influence coefficient and the ocean current influence coefficient based on the centroid height H G and the windward area S W and the draft of the center of buoyancy H -M and the waterward area S C , a preset wind influence coefficient calculation formula and a preset ocean current influence coefficient calculation formula.

[0173] For the specific limitations of the differential pressure opening and closing mode switching system based on the pile driving requirements of the jack-up platform, reference can be made to the limitations of the differential pressure opening and closing mode switching method based on the pile driving requirements of the jack-up platform in the above text, which will not be elaborated here; each module in the above differential pressure opening and closing mode switching system based on the pile driving requirements of the jack-up platform can be implemented in whole or in part by software, hardware and their combinations; the above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0174] Embodiment III

[0175] A computer device, which can be a server, and its internal structure diagram can be as Figure 3As shown in the figure. The computer device includes a processor, a memory, a network interface, and a database connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data such as pile extraction instructions, pile bottom pressure values, pressure threshold groups, pile driving start instructions, and pile driving pause instructions. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, it realizes a differential pressure opening and closing mode switching method based on the pile driving requirements of a jack-up platform.

[0176] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented:

[0177] S10: Receive a pile extraction instruction to obtain the pile bottom pressure value at the bottom of the leg, and compare the pile bottom pressure value with a preset pressure threshold group;

[0178] S20: When the pile bottom pressure value is less than the first pressure value, generate a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to perform spraying work;

[0179] S30: When the pile bottom pressure value is greater than the second pressure value, generate a pile driving pause instruction to control the automatic opening and closing high-efficiency spray valve to pause spraying work.

[0180] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by the processor, the following steps are implemented:

[0181] S10: Receive a pile extraction instruction to obtain the pile bottom pressure value at the bottom of the leg, and compare the pile bottom pressure value with a preset pressure threshold group;

[0182] S20: When the pile bottom pressure value is less than the first pressure value, generate a pile driving start instruction to control the automatic opening and closing high-efficiency spray valve to perform spraying work;

[0183] S30: When the pile bottom pressure value is greater than the second pressure value, generate a pile driving pause instruction to control the automatic opening and closing high-efficiency spray valve to pause spraying work.

[0184] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink), DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0185] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0186] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A pressure difference opening and closing mode switching method based on the pile driving demand of a self-elevating platform is characterized in that: The self-elevating platform comprises a platform body, the platform body is movably connected with a plurality of pile legs, and is provided with a driving assembly for driving the pile legs to rise and fall, the platform body is provided with a drainage assembly, and an automatic opening and closing high-efficiency spray valve is provided at the bottom of the pile legs, and the automatic opening and closing high-efficiency spray valve is connected to the drainage assembly; the method comprises: Receive a pile pulling instruction to obtain a pile bottom pressure value at the bottom of the pile leg, and compare the pile bottom pressure value with a preset pressure threshold group; when the pile bottom pressure value is less than a first pressure value, generate a pile punching start instruction to control the automatic opening and closing high-efficiency spray valve to perform spraying; When the pile bottom pressure value is greater than the second pressure value, a pile impact pause instruction is generated to control the automatic opening and closing high-efficiency spray valve to pause the spraying work; The pressure threshold group includes a first pressure value and a second pressure value, and the first pressure value is smaller than the second pressure value; Also includes: Receive a pile insertion planning instruction, obtain weather forecast information for the platform operation site, generate a pile insertion wind vector, a pile insertion ocean current vector, an operation wind vector, and an operation ocean current vector according to a preset pile insertion period, a next operation cycle period, and weather forecast information; determine an operation comprehensive vector based on the operation wind vector and the operation ocean current vector, determine each pre-pile insertion point based on the operation comprehensive vector, determine a pile insertion comprehensive vector based on the pile insertion wind vector and the pile insertion ocean current vector, and determine a pile insertion order for each pre-pile insertion point based on the pile insertion comprehensive vector; Obtain the water depth value of each pre-insertion pile point, calculate the pile leg pre-drop depth based on the water depth value and the preset pile insertion buffer value, so as to generate a pile leg pre-drop instruction and send it to the corresponding drive component; The step of determining the wind vector includes: S401: determining the main wind direction and main wind speed of all time units in the target period based on the weather forecast information, and determining the corresponding wind unit vector according to the angle value of the main wind direction and the main wind speed of each time unit; S402: Calculate the sum vector of all wind unit vectors in the target period, and determine the wind force vector based on the direction and magnitude of the sum vector; The steps to determine the ocean current vector include: S403: determining the mainstream direction and mainstream velocity of all time units in the target period based on the weather forecast information, and determining the corresponding ocean current unit vector according to the angle value and mainstream velocity of the mainstream direction of each time unit; S404: Calculate the sum vector of all ocean current unit vectors within the target period, and determine the ocean current vector based on the direction and magnitude of the sum vector.

2. The pressure difference opening and closing mode switching method based on the pile driving demand of the self-elevating platform according to claim 1 is characterized in that: The legs are evenly arranged around the platform body; the leg center points and the platform center point form corresponding leg vectors, wherein the leg center point is the geometric center point of the projection of the legs on the sea level, and the platform center point is the geometric center point of the projection of the platform body on the sea level; The method of determining an operation comprehensive vector based on an operation wind vector and an operation ocean current vector, determining each pre-pile insertion point based on the operation comprehensive vector, determining a pile insertion comprehensive vector based on the pile insertion wind vector and the pile insertion ocean current vector, and determining a pile insertion sequence of each pre-pile insertion point based on the pile insertion comprehensive vector includes: Calculate the operation comprehensive vector. If the number of pile legs is an odd number, align the platform center point with the target center point, and one pile leg vector is collinear with the operation comprehensive vector to determine each pre-insertion pile point. If the number of pile legs is an even number, align the platform center point with the target center point, and two pile leg vectors in opposite directions are collinear with the operation comprehensive vector to determine each pre-insertion pile point. Calculate the pile insertion comprehensive vector, and determine the pile insertion order of the pre-pile insertion points corresponding to each pile leg based on the angle between the straight line where each pile leg vector is located and the straight line where the pile insertion comprehensive vector is located in ascending order; Among them, the calculation formula of the operation comprehensive vector is: The calculation formula of the instrumentation comprehensive vector is: is the operation comprehensive vector, k W is the wind influence coefficient, k C is the ocean current influence coefficient, is the operating wind force vector, is the operating current vector, is the instrumentation synthesis vector, is the wind force vector for the pile, is the plugged current vector.

3. The pressure difference opening and closing mode switching method based on the pile driving demand of the self-elevating platform according to claim 1 is characterized in that: Before determining the operation comprehensive vector based on the operation wind vector and the operation ocean current vector, and determining the pile insertion comprehensive vector based on the pile insertion wind vector and the pile insertion ocean current vector, the method further includes: Obtain the platform status information of the jack-up platform to determine the center of mass height H of the jack-up platform G , frontal area S W 、Floating center depth H -M and frontage area S C ; Based on the centroid height H G , frontal area S W 、Floating center depth H -M , frontage area S C , the preset wind force influence coefficient calculation formula and the preset ocean current influence coefficient calculation formula are used to calculate the wind force influence coefficient and the ocean current influence coefficient; The calculation formula of wind influence coefficient is: to W =(k1H G +B1)S W The calculation formula of ocean current influence coefficient is: <h2 style=";text-align:left;direction:ltr">k<h2 style=";text-align:left;direction:ltr"> C <h2 style=";text-align:left;direction:ltr"> (k2H)<h2 style=";text-align:left;direction:ltr"> -M <h2 style=";text-align:left;direction:ltr"> +B2)S<h2 style=";text-align:left;direction:ltr"> C Wherein k1 is the first influence coefficient, B1 is the first influence adjustment value, k2 is the second influence coefficient, B2 is the second influence adjustment value; the centroid height H G It refers to the height of the mass center of the jack-up platform relative to the sea level. The windward area refers to the projection area of ​​the jack-up platform above the sea level perpendicular to the wind vector in the current period. The buoyancy center depth H -M It refers to the depth of the buoyancy center of the jack-up platform relative to the sea level, and the headwater area refers to the projection area of ​​the jack-up platform below the sea level perpendicular to the ocean current vector in the current period.

4. The pressure difference opening and closing mode switching method based on the pile driving demand of the self-elevating platform according to claim 1 is characterized in that: Before receiving the pile pulling instruction to obtain the pile bottom pressure value at the bottom of the pile leg, the method further includes: Obtaining weather forecast information at the platform operation site, generating a pile pulling wind force vector and a pile pulling current vector according to a preset pile pulling time period and weather forecast information, and determining a comprehensive pile pulling vector based on the pile pulling wind force vector and the pile pulling current vector; When the modulus of the pile pulling comprehensive vector is less than a preset first pile pulling sea condition threshold, the pile pulling order corresponding to each pile leg is determined based on the order of the angles between each pile leg vector and the pile insertion comprehensive vector from small to large; When the modulus of the pile pulling comprehensive vector is greater than or equal to the first pile pulling sea condition threshold and less than the second pile pulling sea condition threshold, the pile pulling sequence of each pile leg is set to be pulled out simultaneously; When the modulus of the pile pulling comprehensive vector is greater than or equal to the second pile pulling sea condition threshold, a pile pulling suspension instruction is generated; Among them, the calculation formula of the pile pulling comprehensive vector is: is the comprehensive vector of pile pulling, is the wind force vector for pile pulling, is the pile pulling current vector; the first pile pulling sea condition threshold is less than the second pile pulling sea condition threshold.

5. The pressure difference opening and closing mode switching system based on the pile driving demand of the self-elevating platform is characterized by: The pressure difference opening and closing mode switching method based on the pile-punching demand of the self-elevating platform as described in any one of claims 1 to 4 is applied, the self-elevating platform comprises a platform body, the platform body is movably connected with a plurality of pile legs, and is provided with a driving assembly for driving the pile legs to rise and fall, the platform body is provided with a pumping and drainage assembly, and an automatic opening and closing high-efficiency spray valve is provided at the bottom of the pile legs, and the automatic opening and closing high-efficiency spray valve is connected to the pumping and drainage assembly; the system comprises: A pile bottom pressure value acquisition module is used to receive a pile pulling instruction to obtain a pile bottom pressure value at the bottom of the pile leg, and compare the pile bottom pressure value with a preset pressure threshold group; A spraying work execution module, used for generating a pile punching start instruction to control the automatic opening and closing high-efficiency spray valve to perform the spraying work when the pile bottom pressure value is less than the first pressure value; A spraying work suspension module is used to generate a pile impact suspension instruction to control the automatic opening and closing high-efficiency spray valve to suspend the spraying work when the pile bottom pressure value is greater than the second pressure value; The pressure threshold group includes a first pressure value and a second pressure value, and the first pressure value is less than the second pressure value; the self-elevating platform includes a platform body, the platform body is movably connected to a plurality of pile legs, and is provided with a driving assembly for driving the pile legs to rise and fall, the platform body is provided with a pumping and drainage assembly, and an automatic opening and closing high-efficiency spray valve is provided at the bottom of the pile legs, and the automatic opening and closing high-efficiency spray valve is connected to the pumping and drainage assembly; Also includes: The pile-insertion sea condition analysis module is used to receive pile-insertion planning instructions, obtain weather forecast information at the platform operation site, and generate pile-insertion wind vectors, pile-insertion ocean current vectors, operation wind vectors, and operation ocean current vectors according to the preset pile-insertion time period, the next operation cycle time period, and weather forecast information; A pile insertion sequence determination module is used to determine an operation comprehensive vector based on an operation wind vector and an operation ocean current vector, determine each pre-pile insertion point based on the operation comprehensive vector, determine a pile insertion comprehensive vector based on the pile insertion wind vector and the pile insertion ocean current vector, and determine the pile insertion sequence of each pre-pile insertion point based on the pile insertion comprehensive vector; The pile leg pre-drop instruction generation module is used to obtain the water depth value of each pre-pile insertion point, calculate the pile leg pre-drop depth based on the water depth value and the preset pile insertion buffer value, so as to generate the pile leg pre-drop instruction and send it to the corresponding drive component; The step of determining the wind vector includes: S401: determining the main wind direction and main wind speed of all time units in the target period based on the weather forecast information, and determining the corresponding wind unit vector according to the angle value of the main wind direction and the main wind speed of each time unit; S402: Calculate the sum vector of all wind unit vectors in the target period, and determine the wind force vector based on the direction and magnitude of the sum vector; The steps to determine the ocean current vector include: S403: determining the mainstream direction and mainstream velocity of all time units in the target period based on the weather forecast information, and determining the corresponding ocean current unit vector according to the angle value and mainstream velocity of the mainstream direction of each time unit; S404: Calculate the sum vector of all ocean current unit vectors within the target period, and determine the ocean current vector based on the direction and magnitude of the sum vector.

6. The pressure difference opening and closing mode switching system based on the pile driving demand of the self-elevating platform according to claim 5 is characterized in that: The pile bottom pressure value acquisition module includes: The pile pulling comprehensive vector calculation submodule is used to obtain the weather forecast information of the platform operation site, generate the pile pulling wind force vector and the pile pulling ocean current vector according to the preset pile pulling time period and weather forecast information, and determine the pile pulling comprehensive vector based on the pile pulling wind force vector and the pile pulling ocean current vector; A safe sea condition pile pulling planning submodule is used to determine the pile pulling sequence corresponding to each pile leg based on the order of the angles between each pile leg vector and the pile insertion comprehensive vector from small to large when the modulus of the pile pulling comprehensive vector is less than a preset first pile pulling sea condition threshold; The normal sea condition pile pulling planning submodule is used to set the pile pulling sequence of each pile leg to be pulled out simultaneously when the modulus of the pile pulling comprehensive vector is greater than or equal to the first pile pulling sea condition threshold and less than the second pile pulling sea condition threshold; The risk sea condition pile pulling planning submodule is used to generate a pile pulling suspension instruction when the modulus of the pile pulling comprehensive vector is greater than or equal to the second pile pulling sea condition threshold.

7. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the pressure difference opening and closing mode switching method based on the pile driving demand of the self-elevating platform as described in any one of claims 1 to 4 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, the steps of the pressure difference opening and closing mode switching method based on the pile driving demand of the self-elevating platform as described in any one of claims 1 to 4 are implemented.

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